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US836704A
Expired / Lapsed
US
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Process of producing explosive-powder.
Assignee: DuPont Powder Coatings USA Inc
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Filing: 1906-02-17
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Granted: 1906-11-27
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Expires: 1926-02-17
Abstract
No abstract record available.
Inventors
- 👤 Francis I Du Pont
- 👤 Fin Sparre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:19
CPC Classifications
C; C08; C08B; C08B5/00; C08B5/02; C08B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1909-11-26 | 1910-05-28 | 1910-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-11-26 | 1914-05-28 | 1914-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-11-26 | 1918-05-28 | 1918-11-27 | $7700.00 | Window Closed / Lapsed |